// Licensed to Cloudera, Inc. under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  Cloudera, Inc. licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.cloudera.validation;

import java.util.Set;

/**
 * Validates a descriptor.
 */
public interface DescriptorValidator<T> {

  /**
   * Validates and returns a set of violations for
   * the service descriptor. If valid, an
   * empty set is returned.
   *
   * @param descriptor the descriptor
   * @return the list of violations, empty if valid.
   */
  Set<String> validate(T descriptor);
}
